智慧电厂建设架构规划研究

5G网络与大数据等技术的发展推动着工业生产领域的智慧化进程,智慧电厂建设需要结合前沿技术进行架构构建。结合H电厂具体情况,进行智慧电厂建设规划。借助数据空间大数据技术,构建全厂数据空间,打通电厂数据孤岛,形成统一综合数据平台。通过发电设备状态智能检测与实时数据分析,实现智慧机组管理。引入巡检机器人、盘库机器人等智能监测设备,实现电厂燃料、库存管理智能化。借助智能视频监测、智慧财务、智慧后勤等系统,实现电厂办公、生活智慧化。从数据空间、智慧机组、智慧燃料、智慧园区、智慧管理多角度全方位搭建智慧电厂建设架构。     

不同类型现场总线互联控制网络系统设计

现场总线是当今自动控制领域的热点技术,是连接工业自动化生产现场设备或仪表的现场通信网络,由于其巨大的技术优势,被认为是工业控制发展的必然趋势。由于多种现场总线在工业控制网络中并存,总线协议之间的互联通信已成为工业网络控制中的焦点问题,对于这一焦点问题的研究有助于工业自动控制网络的进一步推广应用。本文介绍了工业控制网络中协议转换的原理,并设计了污水处理厂控制网络系统,进一步指出不同总线协议之间异构并网的可实施性,从而指出工业控制网络中多协议互联通信技术实际应用的意义。     

变电站现场总线适配卡设计分析

现场总线技术是20世纪80年代中期在国际上发展起来并应用于生产现场的、在微机化测量控制设备之间实现双向串行多节点数字通信的系统.     

智慧电厂环境监测与风险预警系统研究与应用

为满足水电厂环境监测与风险预警高效化、智能化需求,设计了一套监测预警系统.通过对水、船、物、人等数据的感知,保障了水域可视化以及工厂安全.利用智能视频设备与AI智能分析平台对大坝关键位置进行实时监控,报告水位和流速情况,完成漂浮物告警弹窗与船舶智能分析;基于智慧消防物联网平台与AR全景可视化系统,实现仪表智能读取与告警联动.智慧电厂实测结果与现场勘察一致,能够为水域管理及故障识别提供全面的数据支撑.     

开滦范各庄矿井下运输系统信集闭系统的应用

开滦能源化工股份范各庄矿业分公司是一个年产原煤量450万吨新型矿井，在该矿井下采用移动设备无线通信技术对电机车运行的实时参数与工况进行监测。采用射频识别技术对运输车辆信息进行自动识剐与定位，通过无线和有线构成的混合现场总线智能交通信息网络实现矿进运行机车识剐、位置跟踪、货物统计、运输统计。停车计时等功能，监视轨道的道岔状态，监测控制设备的工作状态，实现轨道线路闭锁，转辙机控制闲锁、防护拦闭锁功能，大大提高了井下轨道运输的效率、可靠性、安全性与智能化水平，符合一个现代化矿井的自动化要求。     

企业发展战略

最近,Datamnitor公司通过对欧洲各国8个主要工业的700多家自动化最终用户调查后得出,在选择现场总线时,节省成本是主要考虑因素。 在该公司发表的‘现场总线的开发和用户的看法’报告中,对目前的现场总线市场现状和今后可能的发展趋向作了评述,其要点是: ●节省费用,尤其是降低设备维护费用,是最终用户期望从现场总线中获得利益的优先考虑因素; ●欧洲市场中,起主导地位的现场总线是Profibus。由于市场形势还不明朗,最终用户的看法不一定恒定。尽管如此,在目前欧洲的现场总线市场中,Profibus在节省成本方面的信誉最好(除了     

浅谈现场总线技术及前景展望

现场总线是当前自动化领域发展的热点之一，它的出现带来了控制系统的巨大变革。本文简要阐述了现场总线的概念、体系结构和技术特点；最后分析了当前现场总线存在的问题并对其发展趋势进行了展望。     

变电站现场总线适配卡设计分析

现场总线技术是20世纪80年代中期在国际上发展起来并应用于生产现场的、在微机化测量控制设备之间实现双向串行多节点数字通信的系统。它将专用的微处理器置入传统的测量控制仪表中,使它们各自都具有数字计算和数字通信能力,     

Profinet与Profibus两种总线技术应用分析

工业网络控制技术时代,对控制系统的结构有了更高的要求,在这种要求的格局下,现场总线技术应运而生,其中profibus现场总线应用最为广泛,而随着对技术要求的不断提高,profinet实时性工业以太网技术得到了迅猛的发展,这两种不同总线技术在烟草行业都有广泛的应用,本文主要是对这两种总线技术进行应用比较分析。     

基于PLC与现场总线结合的污水处理控制系统

建立智能污水处理系统是污水处理厂高效运行的有效保障，也是污水处理研究的一个重要课题。从污水处理的工艺流程出发，利用PLC与现场总线相结合建立具有现地和中控两种控制模式的自动化污水处理系统，重点探讨了系统的硬件构成和软件编程的特点。采用PLC控制器为核心的自动污水处理系统，利用现场总线实现了与中控室PC机实时通信的功能．提高了污水处理的效率，促进了污水处理系统智能控制、动态监控等多方面的全面发展。     

Penetration and Post-infection Development of Meloidogyne Incognita on Tobacco as Treated by Rhizobacteria Pseudomonas Fluorescens Strain P-72-10

The bio-control potential of rhizospere bacteria Pseudomonas fluorescens against plant-parasite nematode had been demonstrated. P. fluorescens had shown the effect to enhance tobacco resistance to root-knot nematode Meloidogyne incognita. Inoculation with P. fluoreseens in tobacco could lead to significant reductions in the number of juveniles that penetrated tobacco root and further life stage development of the juveniles. The number of juveniles penetrated into tobac- co root in treatment with P. fluorescens is significantly different from CK at 2DAI, 6DAI, 8DAI and 10DAI. Significant reduction and delayed development of juveniles that penetrated into tobacco root and treated were observed in treatment at 14DAI, 21DAI, 28DAI and 35DAI. In addition, P. fluoreseens treatment leads to a significant reduction in the number of eggs per egg-mass at 35 DAI. The results show P. fluorescens induced a continuously suppression on root-knot nema- tode M. incognita throughout their entire early infection phase of root penetration, subsequent life stage development and reproduction.     

利用膜技术回收利用碱性废水研究进展

回顾了利用膜分离技术处理碱性废水的工艺与综合利用技术所取得的丰硕成果，总结了各种治理方法的特点、适用性及发展方向。     

Taxing Times in Indonesia: The Challenge of Restoring Competitiveness and the Search for Fiscal Space

Indonesia’s economic growth picked up slightly in mid-2016 but remains below the level demanded by government and popular aspirations. Despite a plethora of reforms intended to increase efficiency and productivity, some policies are perverse and longstanding problems of implementation remain. The share of manufacturing has declined, the real exchange rate has appreciated, exports have dwindled, and growth has been trending downwards. The banking sector is stable but inefficient, with wide net interest margins and numerous barriers to competition. Trade protection, particularly in basic food commodities, has created high costs that weigh particularly heavily on the poor. Declining government revenues have placed increasing pressure on the public budget, even as the current administration aims to increase spending on infrastructure and welfare and to enhance productivity. In an effort to increase revenues, the government has announced a tax amnesty program and other measures. In addition, Sri Mulyani Indrawati, the new finance minister, has taken steps to cut non-essential expenditure in order to secure high spending on infrastructure and at the same time keep within the 3% budget deficit limit stipulated by law. Although the overall debt situation is not yet alarming, declining revenues and budget cuts that do not fully reflect this decline are putting pressure on increasing debt levels. The government’s high-profile tax amnesty program was the major policy initiative implemented in the second half of 2016 that aimed to relieve this pressure. Despite widespread criticism of, and scepticism about, the tax amnesty (both within and outside Indonesia), its first phase had a much higher participation rate than most independent accounts expected. Revenues raised so far through the amnesty are less than 60% of the official target, but this is actually a strong result for the short term. The bigger question, however, is whether the amnesty is a key element of a more encompassing strategy to overhaul the system of taxation and tax administration.     

The causes of Japan's ‘lost decade’: The role of household consumption

In this paper, I analyze the causes of the prolonged slowdown of the Japanese economy in the 1990s and find that the stagnation of investment, especially private fixed investment, was the primary culprit. I then investigate the causes of the stagnation of household consumption during the 1990s and find that the stagnation of household disposable income, the decline in household wealth, and increased uncertainty about the future are among the contributing factors. Finally, I consider whether demand side factors or supply side factors were more important as causes of the prolonged slowdown of the Japanese economy in the 1990s and conclude that the former (especially misguided government policies) were probably more important.     

我国发展天文旅游的条件、前景探析及策略思考

天文旅游资源从成因可以分为行星地球天文旅游资源、天体天文旅游资源和天文文化旅游资源三类。天文旅游方兴未艾,我国天文旅游具有很大发展前景。文章对我国开展天文旅游的条件进行了分析,对发展天文旅游的策略和措施进行了梳理。     

城市社会的开放与农民的城市化

城市社会在对农民的开放与封闭之中徘徊。改革开放后城市社会对农民的开放已经使很多农民城市化。城市社会对农民的封闭已由政策性封闭转向经济性封闭。城市社会对农民的封闭增加了农民城市化的成本和社会风险。必须加强城市社会对农民的开放,逐步消除对农民的封闭政策,以推进农民的城市化。     

信息化时代商学院图书馆的建设与发展——中、美四大名校商学院图书馆建设的比较与启示

信息化时代中美商学院图书馆的建设与发展,成为当今时代高等商学教育发展与进步的一个重要环节,对中美四大商学院图书馆的发展状况、差距进行分析比较,对促进我国商学院图书馆事业的改革、建设和发展具有一定的启示作用和参考价值。